... taking 4. customised model Ski: foldable sled, sled, snowboard, snow ski, snow board, ski board, sonw slide, kid skiing, ski for kid, snow scooter ... :1. Front and rear ski: strenthened HDPE ski board2. Ski board thickness: 4-15mm3. Steel pipe thickness: 12mm-25mm3. Rack: steel4. Seat: poly fabric ...